drm_hwcomposer: Add meson.build file

This allows building without an AOSP tree, which significantly reduces
system requirements.

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
diff --git a/drm/meson.build b/drm/meson.build
new file mode 100644
index 0000000..7bef11a
--- /dev/null
+++ b/drm/meson.build
@@ -0,0 +1,15 @@
+src_common += files(
+    'DrmAtomicStateManager.cpp',
+    'DrmConnector.cpp',
+    'DrmCrtc.cpp',
+    'DrmDevice.cpp',
+    'DrmDisplayPipeline.cpp',
+    'DrmEncoder.cpp',
+    'DrmFbImporter.cpp',
+    'DrmMode.cpp',
+    'DrmPlane.cpp',
+    'DrmProperty.cpp',
+    'ResourceManager.cpp',
+    'UEventListener.cpp',
+    'VSyncWorker.cpp',
+)